Phase-error compensation of a pulsed power amplifier with a vector modulator in radar applications
Paweł Zawada , Paweł Gontarek , Paweł Barmuta , Maciej Grzegrzółka , Arkadiusz Lewandowski
AbstractThis paper describes a phase-error compensation method employing the digital predistortion for pulsed power amplifiers in radar applications. The predistortion method was evaluated for the power amplifier based on the commercially available Avago ATF52189 HEMT at frequency 1.3 GHz. The measurement setup and the extraction procedure of the inverse model of the power-amplifier phase distortion is presented. Using proposed method the maximum phase-error was reduced from 5 to 0.8 , while the gain changes only within 0.1 dB.
|Publication size in sheets||0.5|
|Book||Organizing Committee of Conference MIKON: Proc. 21st International Conference on Microwaves, Radar and Wireless Communications, 2016, IEEE, ISBN 9781509022151, 732 p.|
|Keywords in English||power amplifier, digital predistortion, vector modulator|
|Score|| = 15.0, 27-03-2017, BookChapterMatConf|
= 15.0, 27-03-2017, BookChapterMatConf
* presented citation count is obtained through Internet information analysis and it is close to the number calculated by the Publish or Perish system.